What did you do rocket wise today?

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Drove to Geneseo, NY to fly with MARS and recover my lost Darkstar Jr from the Police office at the University:D. Flew out of sight during NY Power and I never thought I'd see it again.
 

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Drove to Geneseo, NY to fly with MARS...
Thought how I'd've enjoyed flaying with at Geneseo, but had a prior comittment down in WV. It was fun too, so I'm really not complaining.

I don't suppose there was a Zenith II sustainer in the lost and found?
 
Packed my rocket stuff up somewhat for the move to Jonesboro AR. Start work June 14th as an engineer. My only gripe about Jonesboro is no Tripoli or NAR prefectures. Gonna be a 5-8 hour one way trip to fly rockets but I get some higher waiver options.
 
Worked up the data from yesterday’s Ute Tomahawk G115-F10 flight. 8 seconds of burn is awesome - and about 4 sec too far into the gravity turn :)

IMG_1092.jpg

 
Wow. It slowed during the sustainer burn. Regardless, congratulations. That's a pretty cool flight.

Did you use the Eggtimer Proton or Quantum for this one? Would you mind sharing your settings?
 
Wow. It slowed during the sustainer burn. Regardless, congratulations. That's a pretty cool flight.

Did you use the Eggtimer Proton or Quantum for this one? Would you mind sharing your settings?

Oh, that's a Proton. The nice, smooth Accel and V data don't come from Baro data :)
2019-06-10.png

Green line is the filtered Baro velocity.

I just fetched the settings onto the phone. I'll post them from there.
 
Wow. It slowed during the sustainer burn. Regardless, congratulations. That's a pretty cool flight.

Did you use the Eggtimer Proton or Quantum for this one? Would you mind sharing your settings?

Okay, here are the setting screen shots:
IMG_1094.jpg
IMG_1095.jpg

I’m not using the Accelerometer v Barometer Altitude cross check. I don’t think it’s working for me. The accelerometer doesn’t seem stable enough. Intercept drift with time on the pad. I can illustrate with graphs later.
 
I’m not using the Accelerometer v Barometer Altitude cross check. I don’t think it’s working for me. The accelerometer doesn’t seem stable enough. Intercept drift with time on the pad. I can illustrate with graphs later.

That's what I was wondering about. Interesting....
 
That's what I was wondering about. Interesting....

@BDB , I took a long look at this today. I can add pictures later, but I'm coming to think the Baro data is reading high during boost, rather than the Accel data reading low. Well, it reads low - and really low near apogee - but the quirks that show up near apogee aren't important for setting staging limits.

I took both the Proton and OR Sim exports for both the G78-E22 and the G115-F10 Ute Tomahawk flights and put them in one dataset - then started looking at how Filtered-alt, Sim-alt and Accel-alt (And velocity) compare.

The Accel data and the Sim match closer than the Falt for both flights, in pretty much the same way. I still suspect that I'm not getting good isolation of the avbay from pressures at the base of the rocket - that my wiring chases duct low pressure next to the nozzle during burn and high pressure during separation.
 
We (PyroSkark & I) built a couple of rocket cradles whist waiting for NZ customs to clear our inbound packages...

5y5lhdwm.n1b.jpg


Build Cost US$24.00 and an hour of measuring & cutting.

Need to glue the inspection hatches on the 90 elbows as they keep popping open, and need to add closure caps to the uppers.. will pick them up tonight.
 
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We also took delivery of:

2 x 25' quarter inch super soft & fantastic looking Kevlar harness with pre-fitted nomex blankets & a couple of Top Flight Ultra X Form drogue chutes from OneBadHawk.

Many thanks to Teddy for his advice & recommendations - and the shipping to NZ was just on a week.

Looking forward to showing off his wares, at the next NZRA members launch day.
 
We also took delivery of:

2 x 25' quarter inch super soft & fantastic looking Kevlar harness with pre-fitted nomex blankets & a couple of Top Flight Ultra X Form drogue chutes from OneBadHawk.

Many thanks to Teddy for his advice & recommendations - and the shipping to NZ was just on a week.

Looking forward to showing off his wares, at the next NZRA members launch day.

You're quite welcome Dean..
And thank YOU very much for the post..
They're always so nice to read..
Now, if I may, I'd like to ask something of you,,
When all is said and done,
I'd like very much to see a pic of a rocket hanging on my harnesses
floating gently down over the beautiful countryside of New Zealand...

I have seen a lot of pics rockets hanging on my harnesses from all over the world,,
but haven't yet seen one from your wonderful home country..

Teddy
 
Still agonizing over which rocket I'm going to build as my first two stage to launch. An upscale Nike x or my own design that looks like a navy rim with a booster missile.

While researching parts for them I stumbled upon most of the parts to build an oop Estes ventris on the Estes website so I ordered them today. One slotted 2" pro tube, one plain 2" pro tube, the plastic transition, a 2.5" pro tube, the 2.5" plastic nose cone and just for kicks a 2" plastic nose cone. They have the 29mm motor mount two but I have one and the retainer laying around. All I am really missing is the centering rings so I'll have make some up.

Bob
 
Flying on an Aerotech J245R to an estimated altitude of 4000 feet. Ejection delay drilled to 10 seconds. Great panoramic views of a scene that is like no other. NSL 2019 was a grand success. Thanks to NAR and ROC.
#MadcowRocketry #SuperDX3 #NSL2019

https://bit.ly/superdx3atnsl2019
 
You're quite welcome Dean..
And thank YOU very much for the post..
They're always so nice to read..
Now, if I may, I'd like to ask something of you,,
When all is said and done,
I'd like very much to see a pic of a rocket hanging on my harnesses
floating gently down over the beautiful countryside of New Zealand...

I have seen a lot of pics rockets hanging on my harnesses from all over the world,,
but haven't yet seen one from your wonderful home country..

Teddy

Shall do, although I can't guarantee that we will get a Hobbit in the shot, but we can only try.
 
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